The three common phases of hiy/n5q0b 2cmj uxr5:matter are

  Density is

  Substance A has a dens fggm(3 wwr p-c;j64fqity of $3.0 \; g/cm^{3}$ and substance B has a density of $4.0 \; g/cm^{3}$. In order to obtain equal masses of these two substances, the ratio of the volume of A to the volume of B will be equal to

  Pressure is

  Which of the following is not r4 drd+a7v)re a unit of pressure?

  Consider three drinking glasses. All three have thpyek)y-vexm )w73(une same area base, and all three are filled to the same depth with water. Glass A is cylindrical. Glass B is wider at the top than at thw))e7m pnkyvey-3 ( uxe bottom, and so holds more water than A. Glass C is narrower at the top than at the bottom, and so holds less water than A. Which glass has the greatest liquid pressure at the bottom?

  What is the difference between theynb.oyyfq 47 - pressures inside and outside a tire called?

  When atmospheric pressurj4cp4hml ju8pp0 cww(zp 1okm4/o 2g1 e changes, what happens to the absolute pressure at the bottom of a 4h4/wmpju z1o1p 8cm2w0og(cpp jlk4 pool?

  You are originally 1.0 m beneath the surface of a pool. If you dive tou6y u(5q ,-eppocaw)j, )mucf 2.0 m beneath the surface, what happens to the absolute pressure on yop()w,5fu u- mu acoq pyj6,ce)u?

State Pascal's princ :7kcl2.pzm4u0 inr m*in :degiple.

State Archimedes' princip5;1h7ds pan pble.

  $50 \; cm^{3}$ of wood is floating on water, and $50 \; cm^{3}$ of iron is totally submerged. Which has the greater buoyant force on it?

  As a rock sinks deeper and debj- y)oa3t9 -1bq cbqxeper into water of constant density, what happens to the buoyant fjq- q bta)x3y-c9 1bboorce on it?

  Salt water has greater density than (d rrqga: a*.1iyhn1p fresh water. A boat floats in both fresh water and in salt water. Where is the buoyant force greati( aq.gy* nhdra1 1pr:er on the boat?

  Salt water is more dense thas(.am0zw r z.zegctv8gt2o3 0n fresh water. A ship floats in both fresh water and salt watevaz wz20s.mt t30or gg.zc( e8r. Compared to the fresh water, the volume of water displaced in the salt water is

  A steel ball sinks in water but floats in a pool of mercury. s8 4k5bzwufn:iafc17Where is the buoyant force on thecn kwb 54a: uizf87s1f ball greater?

  A 10-kg piece of aluminum sits r5 )u-mlr:;hezdrs;6n6fu o 2ce hu0 kat the bottom of a lake, right next to a 10-kg piece of lead. Which has the greater buoyant force on it5r -uh of 6z)hu0;n:keu2cr el r6;msd?

  A piece of iron rests on top of a piece of wood floating in a (hs; 6zhw : .yvhe3ioibathtub. If the iron is removed from the wood, what hi o6 ehwh.;(h:v3zsiy appens to the water level in the tub?

  A piece of wood is floating in a bathtub. A yjts1n6udvqs. z ;v)3second piece of wood sits on top of the first piece, and does not touch the water. If the top piece is taken off and placed in the water, wh ) vsd16z;ystn q.3ujvat happens to the water level in the tub?

  Water flows through a pipe. The6gxhn0 b*-lxakrw9 ) gr6. nze diameter of the pipe at point B is larger than at point A.wxn lrr h-bzax6. egn 96k0g)* Where is the speed of the water greater?

  An ideal fluid flows at 12 m/s in a horizontalhp n(ho7gagq,a6 *5 ys pipe. If the pipe widens to twice its original radius, what ih, p*ga 6o7g(nhsq5ays the flow speed in the wider section?

  An ideal fluid flows at 12 m/s in a horizontal pipe. If the pipe narrows to halfexgfm bnplj +:3/y1r 0 its originj1b3r0/ ey :f lg+mpnxal radius, what is the flow speed in the narrower section?

State Bernoulli's prin0bwf* eo7 .-+ ehkurxmf vo/:rciple.

  Which one of the followiblwk 09la y68 91rbn evuuz7aw(h9-tzn3vb- ong is associated with the law of conservation of energy in fuwk1l6 abb9zoa9-v lue zh9vyn -t(08rbwn 73luids?

  As the speed of a moving fluid increasesg hmr eqt6*tud18 vlf:-a.dc8, the pressure in the fluid

  Water flows through a pipe. The diameter of the pipe at pointujjv ju36 a+z3 B is larger than at point A. Where iuj zuj+36ja3vs the water pressure greatest?

  When you blow some air above a paper strip, the paper rises. This is becc uvvn24- *ethz6c gb2ause

  A sky diver falls thro3m9a8xz1vro y1oci * in,1-dbx 0foxtugh the air at terminal velocity. The force of air resistance on ho*z8 ,vx390rdia1b-cnx1it o 1ofymxim is

  Two Styrofoam balls, of radii R and 2R, are released simultaneously from a t57e s( kec) uqyw; /z88sqbyyvall tower. Which will reach theqkcz yqee(yus y ;w)7s/v5b 88 ground first?

  When a small spherical rock of radius r y): ;vw;i9hzh *sacfkie t58ufalls through water, it experiences a drag fohu;w 9e vyi8ca*5;)szifh:kt rce $F=arv$, where $v$ is its velocity and $a$ is a constant proportional to the viscosity of water. From this, one can deduce that if a rock of diameter 2.0 mm falls with terminal velocity, $v$, then a rock of diameter 4.0 mm will fall with terminal velocity .

  Which has the greatest effect on the flow of fluid through a narrow pipe?f0i6w v4 vh+n:)wp5ian1hkvk That is, if you made a 10% change in each of the quantities )6 wik +1 nihf05hav:4n kwvvpbelow, which would cause the greatest change in the flow rate?

  Two horizontal pipes are the same length, ni0;o cywfo f7*s p *g ,0zj+nf,smz3abut pipe B has twice the diameter of pipe A. wi0,z73+ss * ;zocomjf faf n*y ,n0gpWater undergoes viscous flow in both pipes, subject to the same pressure difference across the lengths of the pipes. If the flow rate in pipe A is Q, what is the flow rate in pipe B?

  Two horizontal pipes have the same diameter,02ucbon* shw81trr 0n but pipe B is twice as long as pipe A. Water undergoes viscous flow in both pipes, subject to the same pressure difference across the lengthu1nr20c h8wr 0*bt noss of the pipes. If the flow rate in pipe B is Q, what is the flow rate in pipe A?

  When soup gets cold, it often tastes greasy. This "greasy" tasmq dmgn4e(9bu )ly )v;ky5y f)te seems to be associated with oil spreading out all over the surface of the soup, instead of staying in little globules. To us "physikers", this y qnky(b4eml)m;f) 9 ygu5vd)is readily explained in terms of

  When a tube of diameter d i9(p2svs k,en w3:daig s placed in water, the water rises to a height h. If the diameter were half as great3ga(pdvk nssiw:,2 9e, how high would the water rise?

  Certain insects, such as the water bug, are sufficiently lightwwc4.ymnjob yx v yo6/ol5h;oe1:9h8p eight that they can run on top of water without breaking the surface tension. Water bug A has weight W. Waternyxc6 o .v5w omop9l8/j y 4hebh:yo1; bug B is twice as big as bug A, in all dimensions. That is, bug B is twice as long, twice as wide, etc. What is the weight of bug B?

  Certain insects, such as the water bug, are sufficiently lightweigh5eel-l n34is 8tzdmw0t that they can run on top of water without breaking the surface tension. This is possible because the water, due to surface tension, exerts an upward force on the bottom of the bug's feet. Suppose that the maximum possible upward force on the feet of water bug A is F. Now suppose that water bug B is twice as big as bug A in every dimension. That is, bug B is tw s3t 0e4lmd5wezi- 8nlice as long, twice as wide, etc. What is the maximum upward force on the feet of bug B?

  A plastic block of dimensiugi -:.0cd: bu(xyd loons 2.00 cm x 3.00 cm x 4.00 cm has a mass of 30.0 g. What is its -odu. bi(: ucglx: 0yddensity?

  A liquid has a specific gravity of 0.357., 7/mg1b3cozbwxpqa8 What is its density?

  A brick weighs 50.0 N, and measures 30.0 cm x 10.0 cm x 4.00 c15 /cip.vs sabm. What is the maximum pressure it can exert on a horizb css.i5 /apv1ontal surface?

  A person weighing 900 N is standing f/s7tuxq r9k*on snowshoes. Each snowshoe has area $2500 \; cm^{2}$. What is the pressure on the snow?

  How much pressure (absolute) must a subme -(i1nuvcv -uarine withstand at a depth of 120.0 m in the ocean?uen- vi (c-uv1

  A circular window of 30 cm diameter in a submarine can withstand a maximu ;/tqe)s pj *zcb01uihm forceji;) p/zb*u0cs qeh1 t of $5.20 \times 10^{5} \; N$. What is the maximum depth in a lake to which the submarine can go without damaging the window?

  What is the gauge pressure if the q6en)7r o8f bd/4ra ieabsolute pressure is 300 kPa?

  What is the gauge pressure at a loc* gsmhc: )q+7j edchh4ation 15.0 m below the surface of sea? (The density of seawater ic 74qme:)hchj s*hgd+ s $1.03 \times 10^3 \; kg/m^{3}$.)

  What is the absolute pressure at a location 15.0 m below the surfa*-xx .3ijte0 vklw7lnce of sea? (Twv* kei.xnt0xl-jl 37he density of seawater is $1.03 \times 10^3 \; kg/m^{3}$.)

  A 500-N weight sits on the se7cs28bx, o4pw ,qi6vr hxn0tmall piston of a hydraulic machine. The small piston has area t,p7r,nveihc w2o64x8x b0qs$2.0 \; cm^{2}$. If the large piston has area $40 \; cm^{2}$, how much weight can the large piston support?

  In a hydraulic garage lift, the small piston has aamk72 dhy5jkp ;k; l+b radius of 5.0 cm and the large piston has a radius of 15 cm. What force must be applied on the mkyj a;+ h;kpdlb257k small piston in order to lift a car weighing 20,000 N on the large piston?

  A 13,000 N vehicle is to be lifted by a 25 cm diameter hy tr1ic+e*vq2 rdraulic piston. What force needs to be applied to a 5.0 cm diameter piston to accomp1qtrvc+2*e irlish this?

  The small piston of a hydraulic lift+wrm t13yfef0 has a diameter of 8.0 cm, and its large piston has a d3 fmt 10+yrwfeiameter of 40 cm. The lift raises a load of 15,000 N.
(a) Determine the force that must be applied to the small piston    $N$ (fill in numerical value only)
(b) Determine the pressure applied to the fluid in the lift    $\times 10^5 \; Pa$ (fill in numerical value only)

  A block of metal weighs 40 N in air a76k7gqtpbkc g(., gtlnd 30 N in water. What is the buoyant force of the wat pk7gg glbtck6 (t.,7qer?

  An object has a volume nuow9jl.7twzd+a-: etid 1i +/v-w adof $4.0 \; m^{3}$ and weighs 40,000 N. What will its weight be in water?

  A 4.00-kg cylinder of solid iron is suppo e; 1, 8dq67ztndy hzh;9za ibluf5a8orted by a string while submerged in water. What is the tension in the string? (The specific gravity 1hd67fzo; e5ih 8z8ybl ,aa9 utndqz; of iron is 7.86.)

  If the density of gold 3znj 2ku* 3t63ft af/lliezn(is $19.3 \times 10^3 kg/m^{3}$, what buoyant force does a 0.60-kg gold crown experience when it is immersed in water?

  A crane lifts a steel submarine (denxb5 tq kcsa84( la/ +ng-ssva-sity = $7.8 \times 10^3 \; kg/m^{3}$) of mass 20,000 kg. What is the tension in the lifting cable (1) when the submarine is submerged, and (2) when it is entirely out of the water?

  An object weighs 7.84 N when it is in air and 6.86 awsjf 3s5;d; mq6o s8sN when it is immersed in water. What is ;ss fjw5ms63;osa8d qthe specific gravity of the object?

  A container of water is placed on a scale, and the scale reads 12l3ks d (kit. 6 -ysawwm0/:phl0 g. Now a 20-g piece of copper (specific gravity = 8.9) is suspended from a thread and lowered intopsd( i0y kaww3h6:m/-l. k tls the water, not touching
the bottom of the container. What will the scale now read?

  A piece of aluminum withbujg q6 r9(b,3;reer,( 0lx zai,ee pa a mass of 1.0 kg and density of $2700 \; kg/m^{3}$ is suspended from a string and then completely immersed in a container of water. The density of water is $1000 \; kg/m^{3}$.
(a) Determine the volume of the piece of aluminum    $\times 10^{-4} \; m^3$ (fill in numerical value only)
(b) Determine the tension in the string after the metal is immersed in the container of water $N$ (fill in numerical value only)

  A cylindrical rod of length 12 cm and diameter 2.0 cm will just barely float ivju8m8 cdt: -xn w-ujcv 8:8x mdtater. What is its mass?

  A rectangular box of negligible mass measures 5.0yot+w+w4l3tb; q8jht) 0z5 olcxyh n3 m long, 1.0 m wide, and 0.50 m high. How many kilograms of mass can be loaded onto th +hwlt b yc3yn4 w;t)3ljzxhq0to+ 8o5e box before it sinks in a lake?

  A $1.0 m^{3}$ object floats in water with 20% of it above the waterline. What does the object weigh out of the water?

  An object floats with half its volume beneath the surface of the water. (q 7:vl 60 9nrenlnzyu The weight of the displaced water is 2000 N. What is the weynu0nnrlq7 ze:l 9 6(vight of the object?

  A solid object floats in water with three-fourthxeqh+5 lqs) x;s of its volume beneath the surfaxs ;5lq)x+heqce. What is the object's density?

  A 200-N object floats with three-fourths of its volume beneath3:(7t q qts; qezghi1*6vhhh m the surface of the hh(q thi76 ;gesqq*mv t:hz13water. What is the buoyant force on the object?

  A polar bear of mass 200 kg stands on an ice floe 100 cm thick. What iq c /-y y+jffcij2r7mc(2m+cis the minimum area of the floe that will just support the bear in saltwater of specific gravity 1.03? The specific gravity of ice is 0.9jc7j-/iiyfmcy c2(c + f2 +mqr8.

  Liquid flows through a pipe of diametvz6 rou* y4f))ysnx1 mer 3.0 cm at 2.0 m/s. Find the flow rate.

  Liquid flows through a 4.0 cm diameter pipe at 1.0 m/s. Therok8 zm ;-rt0je,h,v jqe is a 2.0 cm diameter restriction in the line. What is the k08vz jqehr tj-,,om;velocity in this restriction?

  Water flows at 12 m/s,w-gr/rzjv +o in a horizontal pipe with a pressure of $3.0 \times 10^4 \; N/m^2$. If the pipe widens to twice its original radius, what is the pressure in the wider section?

  How much pressure does it tn9mf8yo4vwj;:, zg d 1oc2hcdake for a pump to supply a drinking fountain with 300 kPa, if the fountain is 3,9nd ho8 z1d:mcjv wfc gy;2o40.0 m above the pump?

  A hole of radius 1.0 mm occurs in the bottom of a water storu3 :8 e8r4otzdnt1sh aage tank that holds water at a dept:8thu rod4a8 t1nzes 3h of 15 m. At what rate will water flow out of the hole?

  Water flows through a horizont l)yk ;;*rflfcal pipe of cross-sectional area $10.0 \; cm^{2}$ at a pressure of 0.250 atm. The flow rate is $1.00 \times 10^{-3} \; m^{3}/s$. At a valve, the effective cross-sectional area of the pipe is reduced to $5.00 \; cm^{2}$. What is the pressure at the valve?

  SAE No. 10 oil has a viscosity of 0.20 Pa-s. How lsvc/sv9:e( koong would it take to pour 4.0 L of oil through a funnel with a neck 15 cm long and 2.0 cm in diameter? Assume the surfac e(9v:v/sk ocse of the oil is kept 6 cm above the top of the neck, and neglect any drag effects due to the upper part of the funnel.

  Suppose that the build-up of fatty tissue on the wall 6-ok59jyid- zhzp wk0f caz;6ih7cm n0g1;ejof an artery decreased the radius by 10%. By how much would the pressure provided by the heart have to be increased to maintain a constant dmjz9oa6k-n ezf0i;h-6 c0zj 7gc y1hwpki5;blood flow?

  Two narrow tubes are placed in a pan of water. Tube A has twiqiy+z65 ntst8 ce the diameter of tube B. If water rises 24n8q+y 56 tzits cm in tube A, how high will it rise in tube B?

  The surface tension of water is 0.073 N/m. How high will50: mo.+ ke3xk/hewk5pu rv yj water rise in a capill./55:xv me 3yw +hjrp ekokku0ary tube of diameter 1.2 mm?

  232

  To what height would water at 0 degree Celsius rise in a glass capilla;tmmp 7.7j/ x tjc db/ni2r8sqry tube with a diameter oi b78rm/7t cx.sjn/qp j 2dmt;f
0.50 mm?

  A narrow tube is placed vertically in a pan, e86zt75p vuha/k8jx sgr sj; of water, and the water rises in the tube to 4.0 cm above the level of the pan. The surface tension in the liquid is lowered to one-half its original value by the addition of some soap. What happens to thegsejs 8,6xha 8/t kr;p 75jzuv height of the liquid column in the tube?

  Consider a rectangular frame of length 0.120 m an qoqm2mk2zfe9w f8q,) d width 0.600 m with a soap film formed within its confined area. If the surface tension of soapy water is 0.02q2f ,m29wq z )fkmo8eq60 N/m, how much force does the soap film exert on the 0.600 m side?

  An adjustable rectangular frame has lengtdh7id wr 8*nbb.mbvo j 1a)/7sh 12 cm and width 5 cm, and is built in such a way that one of the longer sides can be moved without bursting the soap film contained in the frame. Soapy water has surface tension 0.026 N/m. How much work is required to move the hrjvwai *m7db8o17d)n. bbs/ adjustable long side so that the frame is 12 cm square?